Semaphore



Mar. 27, 1923. A

W. F.BOSSERT SEMAPHORE Filed June '7, 1921 Tra wf:

The blade described is assembled with the spectacle in various ways, two of which are indicated in Figures 6 and 7.

In Figure 6 the body of the blade is of sullicient width to fit within the flanges 1lupon the spectacle -lQ- and may, as shown, be spaced therefrom by a strip l5- of suitable material constituting a strengthening strip, or washer, the spectacle and the said strip 15'- being provided with properly aligned openings for the passage of a series of bolts w16-, ordinarily four in number, such bolts adapted to pass through the spectacle, the strip l5- and the bayonet slots in the flanges 3- and 4E- of the blade, as shown in Figure 5, the formation of said slots permitting the use of the blade with spectacles in which the formed openings vary somewhat in space distance.

rIhe bolt heads may be spaced from the flanges -9- and IO- by means of additional washers -l7-- as shown, if desired, and in view of the inaccessibility of the bolt heads and their position at the rear of the body of the blade, a channel strip -1S is provided for the purpose 0f preventing the bolt heads from turning when the nuts are being placed upon the bolts. This strip is formed from the blank shown in Figure 8, and in the manner shown in Figure 8, so as to be of a width capable of just receiving the head of the bolt when the slots 19" are fitted over the bolts, preferably between the washer u--17- and the bolt head. The heads fit tightly within the channel bar and are prevented from turning thereby. Preferably, the openings 19# are somewhat elongated so as to permit slight variations in the spaced distance of the bolts.

It will be noted that with this construction no clamps or clasps are required. and that the bolt heads are invisible from the front of the semaphore. The construction so produced is strong and durable, and is easily assembled and the parts are rigidly retained in relative position, and the entire blade constitutes a non-obstructed indicating surface.

In Figure 7 a slightly modified construction is shown in that the side wall -20 is of somewhat greater length than the side wall -21- so that the rear flange w22- will extend along the outside of the flange -11- upon the spectacle and along the rear of the body of the spectacle so as to permit the passage of the'bolts -22- therethrough when the spectacle is of the same construction as indicated in Figure 6. The flange 2lis of substantially the same size as the flange -8.- shown in the former figures, and is adapted to fit within the flange l1- and to be secured thereto by the bolt -24-- Suitable washers -25- may be provided for spacing the bolt head and nut from the flanges upon the blade, if desired, as indicated in the drawings.

It will be observed that the center corrugations -5- extend a considerable distance beyond the termination of the spectacle when the spectacle and blade are assembled in order to produce a comparatively rigid blade n specific construction as illustrative of per-,-l

haps preferred embodiments of my inven tion, I do not desire to limit myself to the details of form, construction or arrangement here' disclosed, as various changes and modifications may be made in each of the same,

without departing from the invention as set forth in the appended claims.

I claim:

l. A semaphore comprising a spectacle,an

enameled sheet metal bladewith one or moreg center corrugations extending some distance beyond the spectacle, and two side corrugations along the outer edges of the bladesand extending substantially the entire length of the blade to stiffen the same.

2. A semaphore comprising a spectacle, an enameled sheet metal blade with one'or more center corrugations lextending somel distance' beyond the spectacle,'two side corrugations along the outer edges of the blades and extending substantially the entire length of the blade to stiften the same, and laterally extending flanges at one end of theblade,

said flanges provided with slots and boltsV passed through said slots and through the y spectacle.

3. In semaphore. a blade provided with laterally extending flanges at one end, said flanges provided. with bayonet slots for receiving bolts.

4. In a semaphore, a bladeprovided with i laterally extending flanges at one end, said flanges provided with bayonet 'slots'for receiving'bolts, the inner portions of the slots of eac'hpair extending toward each other.

5. As a new varticle of manufacture, a"`

semaphore blade constructed entirely of a single sheet of metal having an unbroken face free from protruding fasteningparts and formed with a pair of edge reinforcing j flanges extending throughout substantially" the entire length of the blade, and one or more intermediate flanges extending throughout a portion only of the length of the' blade.

6. In a semaphore, a blade having laterally extending flanges at one end formed; with slots, a metallic` channel member having openings aligned with said slots and bolts passed through said slots, and said i openings, and having heads substantially tting said channel.

7. In a semaphore, a blade having laterally extending langes at one end formed` With slots, a metallic channel member having 10 openings aligned with said slots and bolts passed through said slots; and said openings,` having heads substantially tting said Channel, and said blade formed-With a plurality of longitudinal stifening corrugations.

In Witness whereof Il have-hereunto set my .15

hand this 31st day of May, 1921.

` WILLIAM F. BOSSERT. j r Witnesses: l n j R. E. KING, J. C. EDWARDS. f 

